The main reference for today is Rv 18:17-19.
The sea, ships, sea captains, sailors, and passengers in Rv 18:17-19 are all used figuratively. The sea represents the world (Dn 7:2, 17), the ships represent the churches of the world (Gn 6-8; Is 51:5; Rv 8:9), and the sea captains represent the pastors of the world. The sailors are evangelists, the passengers are congregation members, and those who earn their living from the sea are church officials. All of these people have sold the goods of the spiritual nation of Babylon. In other words, they have used the doctrines of Babylon to evangelize others. These goods, which represent the doctrines and teachings of Babylon, will no longer be purchased after God judges Babylon and reveals her goods to be false.